There are no active watches, warnings or advisories for Jefferson (Colorado).

Regional Radar Regional Infrared Satellite
Radar/Satellite images courtesy of Weather Underground.
METRIC | IMPERIAL
Updated: 12/19/2014 @ 4:50:00 am  
Summary / Temperature Wind Rain/Melted Snow Fire Risk


Dry, Clear skies
Dry, Clear skies

24.5°F Colder 0.7°F than last hour.
---
Currently 24.5, Max: 29.6, Min: 24.0 Feels like:
24°F

24-hr
difference
-3.9°FColder 3.9°F than yesterday at this time.
TEMP: HIGH: LOW:
Today: 29.6°F 24.0°F
12:00am 4:38am
Yesterday: 41.7°F 26.1°F
2:16pm 7:25am
Record: 60.0°F -7.0°F
2004 1989
Normal: 41.0°F 21.0°F
 Wind from NNE NNE
1.6
Gust:
1
Light Air
60-Min Avg: 1.1 mph
120-Min Avg: 1.0 mph
Max Gust: 9 mph 12:21am
Month: 33 mph Dec 2
Today: 0.00 in
Yesterday: 0.00 in
Last
Rain:
12/14/2014
1:31 PM
December: 0.13 in
Last 7 Days: 0.13 in
Rain Season:1 17.59 in
Rain Days: 105 in 2014
4 days since last rain.
Chandler Burning Index
Chandler Burning Index: LOW
Currently:
0.1
at 04:50 AM
Barometer Humidity/Dew Point Sun/Moon
Current: 30.131 inHg Rising 0.012 °F/hr
1-Hr Trend: Steady
3-Hr Trend: Steady
Today: Todays High 30.140
Todays Low 30.114
Humidity: 74 % Decreased 3% since last hour.
Humidex: 17.8°F     
Today: Todays High     
Todays Low     
Dew Point: 17.4°F Decreased 1.6°F since last hour.
Wetbulb: 22.5°F     
Daylight:
Possible hours of Daylight
9:21
+ -00:01:00 Min
Evening Crescent, 26 days, 23 hours, 20 minutes in cycle
30% Illuminated
UV Summary/Forecast Solar Summary
High Yest:   3.9 @ 11:49am
19 Dec 2014   Low   1.6   
20 Dec 2014   Low   1.5   
High Yest:   510.0 @ 11:02am
Today: 00:00  Month: 40:20 Hrs
Rise: 7:17 AM  Set: 4:38 PM
Wind Chill Heating Degree Days Air Quality6
Current: 23.8°F
Today: 19.3°F  at 4:33am
Yesterday: 22.3°F
Last Week: 16.3°F
Record: -23.8°F   01-Feb-2011
Today: 7.4
December: 456.6
2014 to Date: 4909.6
Cooling Degree Days
2014 to Date: 509.3
Current AQI

76


Moderate
Snow3 Irrigation Index5 Station All Time Records Cloud Level
Today: 0.00 in
Yesterday: 0.00 in
December: 1.00 in
Season Total:2 7.38 in
Snow Depth: 0.00 in
1 snow day in December
7 snow days this season.2
Updated at Midnight
Current: 0.01 in   
7-Days Rain: 0.13 in   
7-Days ET: 0.23 in   
7-Day: -0.098 in 0.098 in water in deficit of what evaporated in last 7 days.
December: -0.74 in 0.74 in water in deficit of what evaporated this month.
Outside Now
Air Density: 1.320 kg/m3
HIGHS: LOWS:
99.3°F
25-Jun-2012
-13.9°F
02-Feb-2011
Daytime Records
    95.5°F
25-Jun-2012
  -4.9°F
01-Feb-2011
Nitetime Records
  82.0°F
24-Jun-2012
-9.4°F
02-Feb-2011
ICN:1 ISS:Ok CON:4.6 RCP:100%
1 Rain season: Jan 1st to Dec 31st.    2 Snow season October 1st to September 30th.    3 Snow manually measured usually around 7AM and 7PM.    5 Estimated amount of water needed to replace the water used by plants and evaporation from the past week. (Negative numbers mean amount of water needed, positive numbers mean excess water is present.) 6 Air Quality Index is provided by Minnesota Polution Control Agency and is updated hourly between the hours of 6AM and Midnight.
 NWS Weather Forecast  -   Outlook Today & Tonight
Today

Sunny
Sunny

Hi 43 °F
NWS forecast: Sunny, with a high near 43. West southwest wind around 6 mph.
WXSIM forecast: Partly cloudy in the evening, becoming mostly clear after midnight. Low 20°. Wind west-northwest around 2 mph.
Tonight

Partly Cloudy
Partly
Cloudy
Lo 19 °F
NWS forecast: Partly cloudy, with a low around 19. West southwest wind around 6 mph.
WXSIM forecast: Sunny. High 37°. Wind west around 4 mph.
 NWS Short Term Weather Forecast
Tonight

Partly Cloudy
Partly
Cloudy
Lo 19 °F
Saturday

Partly Sunny
Partly
Sunny
Hi 46 °F
Saturday
Night

Mostly Cloudy
Mostly
Cloudy
Lo 27 °F
Sunday

Partly Sunny
Partly
Sunny
Hi 51 °F
Sunday
Night

Slight Chc Snow. Chance for Measurable Precipitation 20%
Slight Chc
Snow
Lo 35 °F
Monday

Chance Snow. Chance for Measurable Precipitation 30%
Chance
Snow
Hi 43 °F
Monday
Night

Mostly Cloudy
Mostly
Cloudy
Lo 26 °F
Tuesday

Mostly Sunny
Mostly
Sunny
Hi 41 °F
Version 5.03 09-Apr-2010 - Script Mods by: WebsterWeatherLIVE.com
Some Colorado Weather Facts:
The highest temperature on record was 105 F in 2005.

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